Este interruptor sónico, relé sónico o simplemente vox utiliza un altavoz de impedancia media como micrófono. El circuito es de los años 90 y el relé debe ser del tipo acorde a la tensión de alimentación

Vox
Este interruptor sónico, relé sónico o simplemente vox utiliza un altavoz de impedancia media como micrófono. El circuito es de los años 90 y el relé debe ser del tipo acorde a la tensión de alimentación
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